add download methods to save manager

argarak · Dec 13, 2023 · 3a92500 · 3a92500
1 parent b8b4cfc
commit 3a92500
Show file tree

Hide file tree

Showing 2 changed files with 22 additions and 0 deletions.
diff --git a/main.js b/main.js
@@ -24,6 +24,8 @@ import * as basicPatch from "/objects/patches/basic.json";
 import * as basicSynthPatch from "/objects/patches/basic-synth.json";
 import localforage from "localforage";
 
+import SaveManager from "./save-manager";
+
 document.addEventListener("DOMContentLoaded", () => {
     let btnPlay = document.getElementById("btnPlay");
     btnPlay.addEventListener("click", () => {

diff --git a/save-manager.js b/save-manager.js
@@ -2,6 +2,26 @@ import localforage from "localforage";
 
 class SaveManager {
     constructor() {}
+
+    static downloadObject(obj, filename) {
+        let blob = new Blob([JSON.stringify(obj, null, 2)], {
+            type: "application/json",
+        });
+        this.download(blob, filename);
+    }
+
+    static download(blob, filename) {
+        const url = window.URL.createObjectURL(blob);
+        const anchor = document.createElement("a");
+        anchor.style.display = "none";
+        anchor.href = url;
+        anchor.download = filename;
+        document.body.appendChild(anchor);
+
+        anchor.click();
+        window.URL.revokeObjectURL(url);
+        anchor.remove();
+    }
 }
 
 export default SaveManager;